package ooday01;
//构造方法的演示
public class ConsDemo {
    public static void main(String[] args) {
        Student zs=new Student();
        Student ls=new Student("李四",25);
        Student ww=new Student("王五",26,"jsd2302","003");

        zs.sayHi();
        ls.sayHi();
        ww.sayHi();
    }
}
